Systems and method for measuring parameters of a media stream are disclosed. Some example systems include a data collection agent that selectively couples with at least one user-designated media stream and collects data associated with the media stream. The example systems may further include a web server that communicates with at least one data collection agent. The web server may obtain a request from a user for measurement of a user-designated media stream, the user request including an identification of the media stream and a list of one or more performance parameters of said stream to be measured. The data collection agent receives from the web server a parameter set defining a measurement of the user-designated media stream, collects and measures media stream data according to the parameter set, and provides the user with real-time performance characteristics.